<template>
    <div>
        <city-header></city-header>
        <city-search :cities="cities"></city-search>
        <city-list 
          :cities="cities" 
          :hot="hotCities"
          :letter="letter"
         ></city-list>
        <city-alphabet 
          :cities="cities"
          @change="handleLetterChange"
        ></city-alphabet>
    </div>  
</template>

<script>
    import axios from 'axios'
    import CityHeader from './components/Header'
    import CitySearch from './components/Search'
    import CityList from './components/List'
    import CityAlphabet from './components/Alphabet'
    
    export default { 
        name:'City',
        components:{
            CityHeader,
            CitySearch,
            CityList,
            CityAlphabet
        },
        data () {
            return {
                cities:{},
                hotCities:[],
                letter: ''
            }
        },
        methods: {
            getCityInfo() {
                axios.get('/api/city.json').then(this.handleGetCityInfoSucc)
            },
            handleGetCityInfoSucc(res) {
                res = res.data
                if(res.ret && res.data) {
                    const data = res.data
                    this.cities = data.cities
                    this.hotCities = data.hotCities
                }
            },
            handleLetterChange (letter) {
                this.letter = letter
            }
        },
        mounted () {
            this.getCityInfo()
        }
    }
</script>

<style lang="stylus" scoped>

</style>
